Dust-pan



(No Model.)

A. KOEHLER.

DUST PAN.

No. 570,026. Patented Oct. 27, 1896.-

7 INVENTOH 6 WITNESSES." f 7 A TTOHNE VS.

' UNITED STATES PATENT OFFIC ALBERT KOEHL ER, OF BAKER CITY, OREGON.

DUST- PA'N.

SPECIFICATION forming part of Letters Patent No. 570,026, dated October 27, 1896.

Application filed June 13, 1895- Serial No. 552,693. (No model.)

T0 or whom iv may concern.-

Be it known that I, ALBERT KOEHLER, of Baker City, in the county of Baker and State of Oregon, have invented a new and Improved Dust-Pan, of which the following is a full, clear, and exact description.

This invention relates to certain improve ments in dust-pans, and has for its object to provide a device of this character of a simple and inexpensive construction which shall be adapted to retain the dust caused by the broom, whereby the same is prevented from rising in the air and settling on the furniture of the room.

The invention consists in a dust-pan made in the form of a box having walls formed of foraminous material adapted to permit the passage therethrough of the air currents caused by the movement of the broom, the said walls being double and being separated by a space adapted to form a trap to receive and retain the dust.

The invention also contemplates certain novel features of construction and combina tions of parts, whereby certain important advantages are attained, and the dust-pan is made better adapted for use than similar devices heretofore employed, all as will be hereinafter fully set forth. The novel features of the invention will be carefully defined in the claims.

In order that my improvements may be the better understood I have shown in the accompanying drawings a dust-pan constructed in accordance with my invention, in which draw- 1ngs Figure 1 is a perspective view showing the dust-pan in position for use. Fig. 2 is a plan view of the device drawn to a somewhat larger scale than Fig. 1 and showing the top thereof broken away near one end to better illustrate the interior construction. Fig. 3 is a transverse vertical section taken through the dust-pan in the plane indicated by the line 3 3 in Fig. 2. Fig. 4 is a fragmentary view showing the rear side of one end of the device, and Fig. 5 is a detail sectional view drawn to a large scale and showing the construction of the ball-support whereon the dust-pan is mounted.

Similar characters of reference indicate corresponding parts in all the views.

The dust-pan isconstructed in the form of a box having its front side open and provided with a bottom 1 of imperforate material, and the end walls and top walls of the box are each composed of two screens formed of closemeshed wire-gauze or other suitable material fitted with frames about their edges, as clearly seen, and said frames may also be constructed of any suitable material, as, for instance, sheet metal.-

The bottom 1 of the box is so arranged as to be held in a slightly-inclined position, as shown in Fig. 3, its front edge, over which the dust, &c., is to be swept, being held in contact with the floor-surface and its rear edge being held slightly above the floor-surface by means of ball or caster supports, arranged one near each end of said rear edge, said supports comprising balls 2, of metal or the like, held in recesses or cavities formed in bearing-pieces 2, secured to the under side of the bottom 1, as clearly seen in Figs. 3, 4, and 5. These recesses are slightly contracted at their 7 5 months in order that the balls 2 when in place therein may be held securely against accidental dislodgment.

The inner and outer screens 3 and 4, forming the top of the box-like dust-pan, are arranged at angles to one another, being connected at their front edges, whereby a space is left between said screens adapted to receive and retain the light particles raised by the broom in sweeping, and the inner and outer screens 5 and 6, forming the ends of the box, are also arranged at angles to each other, being connected at the front edges of the box-like pan, so as to form spaces at the ends of. the same to receive and retain said 0 fine particles.

The rear side of the pan is contracted in length and height and is open, being adapted to be closed by a hinged door comprising two screens 7 and 11, the outer screen 7 being 9 5 larger than the inner screen 11 and being con nected at its upper edge by means of hinges 8 to the rear edge of the outer screen 4 of the box-top and being provided at its lower edge with hooks 9, adapted to engage eyes 10, set in the box-bottom 1, whereby the said screen 7 may be fastened to the bottom when closed.

The screen 11 is of less dimensions than the screen 7, being formed to correspond to the inner screens 3 and 5, and said screen 11 is connected to the screen 7 by means of vertical brace-bars 12 at its opposite sides, said brace-bars being of such thickness that when the screen 7 is in its closed position the inner screen 11 will also be in its closed position with its edges fitting the rear edges of the inner top and end screens 3 and 5. In this way, it will be seen, a space is formed between the inner and outer screens 7 and 11 corresponding to the spaces between the inner and outer top and end screens and adapted to serve a similar purpose.

To support the device, I provide at opposite ends of the front edge of the top of the box eyes 14 or similar devices, adapted to receive cords 15 or equivalent flexible supporting devices, and to prevent the escape of the dust from the box after being once swept therein I provide a strip 13, arranged in position along the front portion of the bottom, said strip being inclined rearwardly, so as to permit the dust, &c., to be swept over it into the box, but adapted to form a trap to prevent the dust from escaping in the opposite direction.

In operation the device is placed upon the floor, the cords 15 being held in the hand of the sweeper, and is adjusted to the proper position to receive the sweepings by pulling on said cords or by means of the broom or foot of the operator, the ball-supports at the rear edge of the device permitting it to be freely moved. When in proper position, the dust, &c., is swept into the open front of the box over the inclined strip 13 and the heavier particles pass over said strip and fall on the bottom 1, where they are held, while the lighter particles and fibers from the floorcovering, &c., which are raised in the air by the movement of the broom, pass into the box and are caught by the screen-walls of the same, said walls permitting free passage of the air through their perforations, but serving to intercept the said fibers and fine particles carried by the air, which are thereby collected and held. Vhen the sweeping has been finished, the device is emptied by disengaging the hooks 9 from the eyes 10, whereby the hinged rear screens 7 and 11 are permitted to be opened to allow the dust to freely pass out of the interior of the box and also out of the space between the inner and outer screens.

The construction of the device as above described is extremely simple and inexpensive and renders it very convenient for use, since it is adapted to retain all of the dust from the broom and the perforated character of its walls tends to prevent the formation of eddycurrents to carry the dust out of the pan when swept therein. The imperforate bottom 1 of the box is also carried across the space between the inner and outer end and rear walls, so that the dust cannot escape therethrough, and the cords 15 are so mounted that the device may be carried by means of them without danger of spilling the contained dust.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A dust-pan, having an imperforate bottom and walls each composed of two screens spaced apart to form a chamber to receive the dust, one of said walls being hinged and adapted to be opened to permit the device to be emptied, substantially as set forth.

2. A dust-pan having an imperforate bottom and provided with fixed end and top walls each composed of two screens spaced apart to form a dust-chamber, the forward end of which is closed and the rear end of which is open, and a rear wall comprising an outer screen hinged to the outer screen of one of the fixed walls and of dimensions corresponding to the dimensions of the outer screens, and an inner screen secured to but spaced away from the said outer screen and of dimensions corresponding to the dimensions of the inner screens of the fixed walls, substantially as set forth.

3. A dust-pan, consisting of an imperforate bottom perforated sides and top mounted on said bottom, each being composed of two walls, the rear side walls being parallel with each other and the top and end portions being converged toward the front of the pan, substantially as described.

ALBERT KOEIILER. lVitnesses:

R. A. MCCOY, H. B. OSBORN. 

